Means for suspending cars upon trucks



J. F. 0CONNOR.

MEANS FOR SUSPENDING CARS UPON TRUCKS.

APPLICATION FILED IuLY 5, I9I9.

1,405,619. I Peteeeed Feb. 7, 1922.

figer -body bolster,

UNITED y STATES PATENT OFFICE.

JOHN F. OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR TO WILLIAM H. MINER, 0F CHAZY, NEW YORK.

MEANS FOR SUV'SIENDING CARS UPON TRUCKS.

Specification of Letters Patent.

Patented Feb. 7, 1922.

Application led July 5, 1919. Serial No. 308.831.

To all whom t may concern:

Be it known that I, JOHN F. OCoNNoR, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Means for Suspending Cars Upon Trucks, of which the followlng 1s a full, clear, concise, and exact descrlption, reference being had to the accompanying drawings, forming a part of this specification. I

My invention relates to means for suspending cars upon trucks.

One of the objects of my invention is to provlde a railway car struct-ure in which the usual center bearing plates and king pin are ellminated and in which the car body is suspended by an etlicient and simple means eliminating these elements. Other objects will appear from the description of the device hereinafter following.

In the drawings forming a part ot' this specification, Figure 1 illustrates the lower portlon of a car body and the adjacent portions of the truck with my inventlon applied thereto, the same being shown partly in end view and partly in cross section. Fig. 2 is a horizontal section taken on the line 2-2 of Fig. 1. Fig. 3 is an end view of the bolsters showing stops which I employ to limit the lateral movement of the car body. Fig. 4 is a vertical section taken on the line 4-4 of Referring to the drawings, the numeral 10 indicates the lower portion of a car body having the body bolster 11 secured thereto. The said bolster is arranged transversely of the car body and is of a general convex shape along its lowe'i` edge and is arranged opposite a truck bolster 12, the upper edge of which is concave and sufficiently spaced apart from the body bolster to rovide between the said bolters a runway or the antilfriction rollers 13--13.

In the preferred form of my invention shown in theJ drawings, the.said rollers 13 are arranged in three sets `comprising two end sets 14-14 and a central set'15. Stops for the central set are provided upon one ot' said bolsters, as for instance, the Ystops' 16 provided upon the truck bolster, and similar stops are provided for the end sets, as for instance, the inner stops 17 provided on the .and the end stops 18 provided numeral 23 in Fig. 3 of the drawing to limit the lateral oscillations of the car body 1n reference to the trucks.

Alono the axis of the car body and substantialIy centrally of the end of the bolsters, I provide a perforation 24 passing through the body bolster 11 and through the enclosing flanges 25-25 of the truck bolster for the passage of a transverse pin 26 provided at its one end with a head 27 .and at its other end with a cotter 28 to prevent its accidental displacement, the said pin serving to securely hold the body of the car to the trucks. To permit the slight lateral oscillation of the car body in reference to the truck, which is desirable, the said perforation 24 is elongated lengthwise in the body bolster as indicated bythe numeral 29.

From the foregoing description, it will be observed that the weight of the car body is transmitted from thebody bolsters to the truck bolster only through the anti-friction rollers 13. Upon swaying of the 'car body in either direction, the rollers will rotate within the runway formed between the two bolsters until the stops 22 are engaged by the stops 21 at the ends of the bolsters.

The construction described eliminates the difficulties experienced in connection with the use of center plates and king pin, forms an eliicient means forl suspending the car body upon its trucks and 'permits swaying or weaving of the car body in reference to the trucks without any distortion of connecting means between the same and without tendency to disturb the regular movement of the running gear of the car upon a railroad track. s

An upper spring plank is indicated at 30, the same being downwardly bowed intermediate its ends as at 31 and substantially conforming to the lower contour of the truck bolster. Near its ends, the straight -portion of the truck bolster is provided with a transverse bearing face 32 between which a rod extending through the longitudinalv aperture 35 provided in the truck bolster and having the cotter 36 at its ends to prevent the accidental displacement of the side bear-l ing rollers 33. The said rod is also provided with a shoulder 37 near either end between which shoulder and the cotter .36 upon the same end of the rod 34, the anti-friction side bearing elements are held against longitudinal movement upon the axle.

I claim:

1. In car construction, the combination with the underframe of a car body and a body bolster rigidly secured thereto; of a truck including a truck bclster. said body and truck bolsters having vertically overlapping parts provided with clearance therebetween to permit relative swiveling movements of the bolsters, said bolsters having also opposed bearing edges, and anti-friction elements interposed between said bearing edges adapting the body bolster for movement laterally with respect to the truck bolster.

2. In a device of the character described,

means for suspending a car body upon its trucks, said means including a truck bolster, a body bolster and interposed antifriction rollers, one of said bolsters being concave and the other convex.

3. In a railroad car, the combination with a body bolster, of a truck bolster, one of said bolsters having flanges enclosing the other bolster, and anti-friction rollers mounted between the said bolsters.

4. In a railroad car, the combination with a truck bolster, and a body bolster, of runways provided between the bolsters, said runways being curved in vertical planes about a horizontal axis, and anti-friction rollers mounted in said runway.

5. In a railroad car, in combination: a truck bolster and a body bolster, the said bolsters being provided with opposed runways extending continuously from one side to the other side of the centers of the bolsters, of anti-friction 'rollers mounted in said runways.

adapted to engage each other to limit the relative movement of the bolsters.

8. In a railroad car, in combination: a body bolster, and a relatively movable truck bolster, one of said bolsters having flanges overlapping the other bolster, and a pin passing through the same to hold the bolsters together. e

9. In a railroad car, in combination: a curved body bolster, a similarly curved truck bolster, one of said bolsters having parts overlapping the other bolster, and a pin passing through the overlapping parts to hold the bolsters together. y

10. In a railroad car, in combination: a. body bolster and a spaced apart truck bolster, the opposed edges. of said bolsters being similarly curved, one of said bolsters having members overlapping the other bolster, an elongated perforation through said bolsters and a pin extending through said perforation.

11. In a railroad car, in combination: a body bolster, a truck bolster, anti-frietion rollers mounted between the bolsters, and a pin, the bolsters being provided with opposed curved runways for the reception of the anti-friction rollers, one of said bolsters having flanges overlapping the other bolster, andthe pin passing therethroughl to hold the bolsters together.

12. In a railroad car, in combination: a truck bolster and a body bolster, said bolsters being provided with opposed curved y runways and having anti-friction rollers in said runways, stops for the anti-friction rollers and further stops provided upon the bolsters to limit their relative movement.

13. In a device of the character described, in combination: a body bolster, a truck bolster, a spring plank, anti-friction rollers mounted between the bolsters and having a longitudinal rolling movement therebetween, an axle extended from the truck bolster and having side bearing rollers thereon, said rollers being mounted between the truck bolster and the spring plank.

14. In a railroad car, the combination with a bolster and a spring plank, of a rod extended through the. bolster, anti-friction rollers mounted upon said rod and rolling between the bolster and spring plank.

15. In a railroad car, the combination with a bolster and a spring plank, each having a curved portion intermediate its ends, anl axle passing through the curved portion of one of said members extending between said members and having anti-friction rollers mounted thereon and adapted to roll between the bolster and spring plank.

In witness that I claim the foregoing I have hereunto subscribed my name this 14th day of June, 1919.

JOHN F. OCONNOR.

arab 

